Kalanchoe plant named ‘Nemo’

ABSTRACT

A new and distinct cultivar of  Kalanchoe  plant named ‘Nemo’, characterized by its numerous large dark red-colored flowers; upright, uniform and compact plant habit; freely branching growth habit; dark green glossy leaves; early flowering; and excellent postproduction longevity.

Botanical designation: Kalanchoe blossfeldiana.

Cultivar denomination: ‘Nemo’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Kalanchoe plant, botanically known as Kalanchoe blossfeldiana, and hereinafter referred to by the name ‘Nemo’.

The new Kalanchoe is a product of a planned breeding program conducted by the Inventor in De Lier, The Netherlands. The objective of the breeding program was to create new freely-branching and freely-flowering Kalanchoe cultivars with attractive foliage and flower coloration.

The new Kalanchoe originated as a single plant from a cross made by the Inventor in 1998 of the Kalanchoe blossfeldiana cultivar Sumaco, disclosed in U.S. Plant Pat. No. 12,151, as the female, or seed, parent with the Kalanchoe blossfeldiana cultivar Tenorio, disclosed in U.S. Plant Pat. No. 9,617, as the male, or pollen, parent. The cultivar Nemo was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross in a controlled environment in De Lier, The Netherlands.

Asexual reproduction of the new Kalanchoe by terminal vegetative cuttings taken at De Lier, The Netherlands, since 2000 has shown that the unique features of this new Kalanchoe are stable and reproduced true to type in successive generations.

BRIEF SUMMARY OF THE INVENTION

The cultivar Nemo has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Nemo’. These characteristics in combination distinguish ‘Nemo’ as a new and distinct cultivar:

-   -   1. Large and numerous dark red-colored flowers.     -   2. Upright, uniform and compact plant habit.     -   3. Freely branching growth habit.     -   4. Dark green-colored glossy leaves.     -   5. Early flowering.     -   6. Excellent postproduction longevity.

Plants of the new Kalanchoe can be compared to plants of the female parent, the cultivar Sumaco. In side-by-side comparisons conducted by the Inventor in De Lier, The Netherlands, plants of the new Kalanchoe differed from plants of the cultivar Sumaco in the following characteristics:

-   -   1. Plants of the new Kalanchoe had stronger roots and leaves         than plants of the cultivar Sumaco.     -   2. Plants of the new Kalanchoe flowered earlier than plants of         the cultivar Sumaco.     -   3. Flower color of plants of the new Kalanchoe was darker and         more intense than flower color of plants of the cultivar Sumaco.     -   4. Plants of the new Kalanchoe had longer postproduction         longevity than plants of the cultivar Sumaco.

Plants of the new Kalanchoe can be compared to plants of the male parent, the cultivar Tenorio. In side-by-side comparisons conducted by the Inventor in De Lier, The Netherlands, plants of the new Kalanchoe differed from plants of the cultivar Tenorio in the following characteristics:

-   -   1. Plants of the new Kalanchoe were more compact than plants of         the cultivar Tenorio.     -   2. Plant habit of plants of the new Kalanchoe was more uniform         than plant habit of plants of the cultivar Tenorio.     -   3. Plants of the new Kalanchoe had larger flowers than plants of         the cultivar Tenorio.     -   4. Plants of the new Kalanchoe had longer postproduction         longevity than plants of the cultivar Tenorio.

Plants of the new Kalanchoe can also be compared to plants of the Kalanchoe cultivar Debbie, disclosed in U.S. Plant Pat. No. 9,428. In side-by-side comparisons conducted by the Inventor in De Lier, The Netherlands, plants of the new Kalanchoe differed from plants of the cultivar Debbie in the following characteristics:

-   -   1. Plants of the new Kalanchoe were more compact than plants of         the cultivar Debbie.     -   2. Plants of the new Kalanchoe were more freely branching than         plants of the cultivar Debbie.     -   3. Plants of the new Kalanchoe flowered earlier than plants of         the cultivar Debbie.     -   4. Plants of the new Kalanchoe had tighter (not as open) umbels         than plants of the cultivar Debbie.     -   5. Flower color of plants of the new Kalanchoe was darker and         more intense than flower color of plants of the cultivar Debbie.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Kalanchoe, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Kalanchoe. The photograph comprises a side perspective view of a typical potted plant of ‘Nemo’.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart except where general terms of ordinary dictionary significance are used. Plants used for the aforementioned photograph and for the description were grown during the autumn in De Lier, The Netherlands, in a glass-covered greenhouse. During the production of the plants, day temperatures ranged from 20° C. to 25° C.; night temperatures ranged from 19° C. to 21° C.; and light levels ranged from 10,000 to 50,000 lux. Unrooted cuttings were directly stuck in 12.5-cm containers and received long day/short night conditions (more than 14 hours of light) for about three weeks; plants then received photoinductive short day/long night conditions (minimum 14 hours darkness) until flowering. Plants were about 13 weeks old from an unrooted cutting when the photograph and the description were taken.

-   Botanical classification: Kalanchoe blossfeldiana cultivar Nemo. -   Parentage:     -   -   Female or seed parent.—Kalanchoe blossfeldiana cultivar             Sumaco, disclosed in U.S. Plant Pat. No. 12,151.         -   Male, or pollen, parent.—Kalanchoe blossfeldiana cultivar             Tenorio, disclosed in U.S. Plant Pat. No. 9,617. -   Propagation:     -   -   Type cutting.—Terminal vegetative cuttings.         -   Time to initiate roots.—Summer: About 12 days at 21° C.             Winter: About 15 days at 21° C.         -   Time to produce a rooted cutting.—Summer: About 21 days at             21° C. Winter: About 28 days at 21° C.         -   Root description.—Numerous, fine, fibrous, and             well-branched. -   Plant description:     -   -   Form.—Upright, uniform and compact plant habit. Very freely             flowering with numerous compound cymes. Inverted triangle             with rounded crown. Appropriate for 10 cm to 15 cm             containers.         -   Crop time.—About 11 to 14 weeks: 3 to 4 weeks under long             day/short night conditions followed by 8 to 10 weeks of             short day/long night conditions. Moderately vigorous growth             rate.         -   Plant height at flowering.—About 17 cm.         -   Plant diameter at flowering.—About 16 cm.         -   Branching habit.—Freely branching; typically six to eight             lateral branches develop per plant. Pinching (removal of             terminal apex) is not required but will enhance lateral             branch development.         -   Lateral branch description.—Length: About 11 cm to 14 cm.             Diameter: About 3 cm to 6 cm. Internode length: About 2 cm             to 3 cm. Aspect: Erect. Strength: Moderately strong.             Texture: Smooth, glabrous. Color: 147A.         -   Foliage description.—Leaves simple, opposite, generally             symmetrical. Quantity per plant: About 8 to 13 mature leaves             and 12 to 18 generative leaves. Length: About 10 cm. Width:             About 7.5 cm. Shape: Ovate. Apex: Acute. Base: Obtuse.             Margin: Crenate. Texture: Leathery, glabrous and succulent.             Color: Developing and fully expanded leaves, upper surface:             147A; glossy. Developing and fully expanded leaves, lower             surface: 147B. Venation, upper surface: 147A. Venation,             lower surface: 147B. Petiole length: About 1.2 cm. Petiole             diameter: About 3 mm by 7 mm. Petiole color, upper and lower             surfaces: 147A to 147B. -   Flower description:     -   -   Flower type and habit.—Single flowers arranged in compound             dichasial cymes that arise from leaf axils. Freely             flowering; more than 25 open flowers per lateral branch and             more than 150 open flowers per plant. Flowering continuously             for at least seven weeks. Flowers persistent. Flowers not             fragrant.         -   Natural flowering season.—Plants of the new Kalanchoe             initiate and develop flowers under short day/long night             conditions or during the late autumn/winter/early spring.             Flower initiation and development can also be induced under             artificial short day/long night conditions (at least 14             hours of darkness).         -   Time to flower.—Under short day/long night photoinductive             conditions, about eight to ten weeks are required. Actual             time to flower is primarily dependent upon temperature and             light intensity.         -   Post-production longevity.—Excellent post-production             longevity; plants maintain good foliage and flower substance             for about 43 days under interior environmental conditions.             Individual flowers last about 18 days on the plant.         -   Flower diameter.—About 1.8 cm.         -   Flower height.—About 1.4 cm.         -   Flower buds.—Shape: Initially oblong, becoming tubular ovoid             with development. Length: About 1 cm. Width: About 3 mm.             Color: Initially, 138C, then 41D with development.         -   Petals.—Quantity: Four fused at base. Length: About 8.5 mm.             Width: About 5 mm. Aspect: Flat to slightly upright. Shape:             Ovate. Apex: Obtuse. Margin: Entire. Texture: Glabrous,             smooth. Color: When opening and fully opened, upper surface:             45A. When opening and fully opened, lower surface: 44C to             44D.         -   Sepals.—Quantity: Four fused at base. Length: About 5 mm.             Width: About 1.5 mm. Aspect: Erect. Shape: Oblong. Apex:             Acute. Base: Obtuse. Margin: Entire. Texture: Glabrous,             smooth. Color, upper and lower surfaces: 137D.         -   Peduncles.—Length: About 3 mm to 8 mm. Diameter: About 2 mm.             Aspect: Erect. Strength: Strong, flexible. Texture: Smooth,             leathery. Color: 138C.         -   Reproductive organs.—Stamens: Quantity per flower: Eight.             Anther shape: Elliptic; flat. Anther size: About 0.3 mm.             Anther color: Close to 150D. Pollen amount: Scarce. Pollen             color: Close to 12A. Pistils: Quantity per flower: Four.             Style length: About 1 mm. Style color: 138D. Stigma shape:             Flat, rounded. Stigma color; 8D. Ovary color: 138D.         -   Seed.—Length: About 0.1 mm. Diameter: About 0.05 mm. Color:             Close to 166C. -   Disease/pest resistance: Plants of the new Kalanchoe have not been     observed to be resistant to pathogens and pests common to     Kalanchoes. -   Temperature tolerance: Plants of the new Kalanchoe have been     observed to tolerate low temperatures of 16° C. and high     temperatures of 35° C. -   Garden performance: Plants of the new Kalanchoe perform have been     observed to perform well in the garden and are tolerant to rain and     wind. 

1. A new and distinct cultivar of Kalanchoe plant named ‘Nemo’, as illustrated and described. 